201728749775

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1\times {\mathrm{3019}}^1$

素因数の和:3289

約数の個数: 96

約数和(自身を含む): 300542668800

約数和(自身を除く): 98813919025

約数列:

[1, 5, 7, 25, 31, 35, 109, 113, 155, 175, 217, 545, 565, 763, 775, 791, 1085, 2725, 2825, 3019, 3379, 3503, 3815, 3955, 5425, 12317, 15095, 16895, 17515, 19075, 19775, 21133, 23653, 24521, 61585, 75475, 84475, 86219, 87575, 93589, 105665, 118265, 122605, 307925, 329071, 341147, 381827, 431095, 467945, 528325, 591325, 613025, 655123, 1645355, 1705735, 1909135, 2155475, 2303497, 2339725, 2388029, 2672789, 3275615, 8226775, 8528675, 9545675, 10201201, 10575557, 11517485, 11940145, 13363945, 16378075, 37185023, 51006005, 52877785, 57587425, 59700725, 66819725, 71408407, 74028899, 185925115, 255030025, 260295161, 264388925, 357042035, 370144495, 929625575, 1152735713, 1301475805, 1785210175, 1850722475, 5763678565, 6507379025, 8069149991, 28818392825, 40345749955, 201728749775]

約数ペア:

[(1, 201728749775), (5, 40345749955), (7, 28818392825), (25, 8069149991), (31, 6507379025), (35, 5763678565), (109, 1850722475), (113, 1785210175), (155, 1301475805), (175, 1152735713), (217, 929625575), (545, 370144495), (565, 357042035), (763, 264388925), (775, 260295161), (791, 255030025), (1085, 185925115), (2725, 74028899), (2825, 71408407), (3019, 66819725), (3379, 59700725), (3503, 57587425), (3815, 52877785), (3955, 51006005), (5425, 37185023), (12317, 16378075), (15095, 13363945), (16895, 11940145), (17515, 11517485), (19075, 10575557), (19775, 10201201), (21133, 9545675), (23653, 8528675), (24521, 8226775), (61585, 3275615), (75475, 2672789), (84475, 2388029), (86219, 2339725), (87575, 2303497), (93589, 2155475), (105665, 1909135), (118265, 1705735), (122605, 1645355), (307925, 655123), (329071, 613025), (341147, 591325), (381827, 528325), (431095, 467945)]